BotPassword::getToken() - Code Metrics - wikimedia/mediawiki - Measure and Improve Code Quality continuously with Scrutinizer

BotPassword::getToken() A
last analyzed 2016-11-13 17:42 UTC

↳ Parent: BotPassword

Complexity

Conditions	1
Paths	1

Size

Total Lines	3
Code Lines	2

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	1
eloc	2
nc	1
nop	0
dl	0
loc	3
rs	10
c	0
b	0
f	0

<?php
/**
 * Utility class for bot passwords
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 * http://www.gnu.org/copyleft/gpl.html
 */

use MediaWiki\Session\BotPasswordSessionProvider;

/**
 * Utility class for bot passwords
 * @since 1.27
 */
class BotPassword implements IDBAccessObject {

	const APPID_MAXLENGTH = 32;

	/** @var bool */
	private $isSaved;

	/** @var int */
	private $centralId;

	/** @var string */
	private $appId;

	/** @var string */
	private $token;

	/** @var MWRestrictions */
	private $restrictions;

	/** @var string[] */
	private $grants;

	/** @var int */
	private $flags = self::READ_NORMAL;

	/**
	 * @param object $row bot_passwords database row
	 * @param bool $isSaved Whether the bot password was read from the database
	 * @param int $flags IDBAccessObject read flags
	 */
	protected function __construct( $row, $isSaved, $flags = self::READ_NORMAL ) {
		$this->isSaved = $isSaved;
		$this->flags = $flags;

		$this->centralId = (int)$row->bp_user;
		$this->appId = $row->bp_app_id;
		$this->token = $row->bp_token;
		$this->restrictions = MWRestrictions::newFromJson( $row->bp_restrictions );
		$this->grants = FormatJson::decode( $row->bp_grants );

	}

	/**
	 * Get a database connection for the bot passwords database
	 * @param int $db Index of the connection to get, e.g. DB_MASTER or DB_REPLICA.
	 * @return Database
	 */
	public static function getDB( $db ) {
		global $wgBotPasswordsCluster, $wgBotPasswordsDatabase;

		$lb = $wgBotPasswordsCluster
			? wfGetLBFactory()->getExternalLB( $wgBotPasswordsCluster )

			: wfGetLB( $wgBotPasswordsDatabase );

		return $lb->getConnectionRef( $db, [], $wgBotPasswordsDatabase );
	}

	/**
	 * Load a BotPassword from the database
	 * @param User $user
	 * @param string $appId
	 * @param int $flags IDBAccessObject read flags
	 * @return BotPassword|null
	 */
	public static function newFromUser( User $user, $appId, $flags = self::READ_NORMAL ) {
		$centralId = CentralIdLookup::factory()->centralIdFromLocalUser(
			$user, CentralIdLookup::AUDIENCE_RAW, $flags
		);
		return $centralId ? self::newFromCentralId( $centralId, $appId, $flags ) : null;
	}

	/**
	 * Load a BotPassword from the database
	 * @param int $centralId from CentralIdLookup
	 * @param string $appId
	 * @param int $flags IDBAccessObject read flags
	 * @return BotPassword|null
	 */
	public static function newFromCentralId( $centralId, $appId, $flags = self::READ_NORMAL ) {
		global $wgEnableBotPasswords;

		if ( !$wgEnableBotPasswords ) {
			return null;
		}

		list( $index, $options ) = DBAccessObjectUtils::getDBOptions( $flags );
		$db = self::getDB( $index );
		$row = $db->selectRow(
			'bot_passwords',
			[ 'bp_user', 'bp_app_id', 'bp_token', 'bp_restrictions', 'bp_grants' ],
			[ 'bp_user' => $centralId, 'bp_app_id' => $appId ],
			__METHOD__,
			$options
		);
		return $row ? new self( $row, true, $flags ) : null;
/**
 * @return array|string
 */
function returnsDifferentValues($x) {
    if ($x) {
        return 'foo';
    }

    return array();
}

$x = returnsDifferentValues($y);
if (is_array($x)) {
    // $x is an array.
}
	}

	/**
	 * Create an unsaved BotPassword
	 * @param array $data Data to use to create the bot password. Keys are:
	 *  - user: (User) User object to create the password for. Overrides username and centralId.
	 *  - username: (string) Username to create the password for. Overrides centralId.
	 *  - centralId: (int) User central ID to create the password for.
	 *  - appId: (string) App ID for the password.
	 *  - restrictions: (MWRestrictions, optional) Restrictions.
	 *  - grants: (string[], optional) Grants.
	 * @param int $flags IDBAccessObject read flags
	 * @return BotPassword|null
	 */
	public static function newUnsaved( array $data, $flags = self::READ_NORMAL ) {
		$row = (object)[
			'bp_user' => 0,
			'bp_app_id' => isset( $data['appId'] ) ? trim( $data['appId'] ) : '',
			'bp_token' => '**unsaved**',
			'bp_restrictions' => isset( $data['restrictions'] )
				? $data['restrictions']
				: MWRestrictions::newDefault(),
			'bp_grants' => isset( $data['grants'] ) ? $data['grants'] : [],
		];

		if (
			$row->bp_app_id === '' || strlen( $row->bp_app_id ) > self::APPID_MAXLENGTH ||
			!$row->bp_restrictions instanceof MWRestrictions ||
			!is_array( $row->bp_grants )
		) {
			return null;
		}

		$row->bp_restrictions = $row->bp_restrictions->toJson();
		$row->bp_grants = FormatJson::encode( $row->bp_grants );

		if ( isset( $data['user'] ) ) {
			if ( !$data['user'] instanceof User ) {
				return null;
			}
			$row->bp_user = CentralIdLookup::factory()->centralIdFromLocalUser(
				$data['user'], CentralIdLookup::AUDIENCE_RAW, $flags
			);
		} elseif ( isset( $data['username'] ) ) {
			$row->bp_user = CentralIdLookup::factory()->centralIdFromName(
				$data['username'], CentralIdLookup::AUDIENCE_RAW, $flags
			);
		} elseif ( isset( $data['centralId'] ) ) {
			$row->bp_user = $data['centralId'];
		}
		if ( !$row->bp_user ) {
			return null;
		}

		return new self( $row, false, $flags );
	}

	/**
	 * Indicate whether this is known to be saved
	 * @return bool
	 */
	public function isSaved() {
		return $this->isSaved;
	}

	/**
	 * Get the central user ID
	 * @return int
	 */
	public function getUserCentralId() {
		return $this->centralId;
	}

	/**
	 * Get the app ID
	 * @return string
	 */
	public function getAppId() {
		return $this->appId;
	}

	/**
	 * Get the token
	 * @return string
	 */
	public function getToken() {
		return $this->token;
	}

	/**
	 * Get the restrictions
	 * @return MWRestrictions
	 */
	public function getRestrictions() {
		return $this->restrictions;
	}

	/**
	 * Get the grants
	 * @return string[]
	 */
	public function getGrants() {
		return $this->grants;
	}

	/**
	 * Get the separator for combined user name + app ID
	 * @return string
	 */
	public static function getSeparator() {
		global $wgUserrightsInterwikiDelimiter;
		return $wgUserrightsInterwikiDelimiter;
	}

	/**
	 * Get the password
	 * @return Password
	 */
	protected function getPassword() {
		list( $index, $options ) = DBAccessObjectUtils::getDBOptions( $this->flags );
		$db = self::getDB( $index );
		$password = $db->selectField(
			'bot_passwords',
			'bp_password',
			[ 'bp_user' => $this->centralId, 'bp_app_id' => $this->appId ],
			__METHOD__,
			$options
		);
		if ( $password === false ) {
			return PasswordFactory::newInvalidPassword();
		}

		$passwordFactory = new \PasswordFactory();
		$passwordFactory->init( \RequestContext::getMain()->getConfig() );
		try {
			return $passwordFactory->newFromCiphertext( $password );
		} catch ( PasswordError $ex ) {
			return PasswordFactory::newInvalidPassword();
		}
	}

	/**
	 * Save the BotPassword to the database
	 * @param string $operation 'update' or 'insert'
	 * @param Password|null $password Password to set.
	 * @return bool Success
	 */
	public function save( $operation, Password $password = null ) {
		$conds = [
			'bp_user' => $this->centralId,
			'bp_app_id' => $this->appId,
		];
		$fields = [
			'bp_token' => MWCryptRand::generateHex( User::TOKEN_LENGTH ),
			'bp_restrictions' => $this->restrictions->toJson(),
			'bp_grants' => FormatJson::encode( $this->grants ),
		];

		if ( $password !== null ) {
			$fields['bp_password'] = $password->toString();
		} elseif ( $operation === 'insert' ) {
			$fields['bp_password'] = PasswordFactory::newInvalidPassword()->toString();
		}

		$dbw = self::getDB( DB_MASTER );
		switch ( $operation ) {
			case 'insert':
				$dbw->insert( 'bot_passwords', $fields + $conds, __METHOD__, [ 'IGNORE' ] );
				break;

			case 'update':
				$dbw->update( 'bot_passwords', $fields, $conds, __METHOD__ );
				break;

			default:
				return false;
		}
		$ok = (bool)$dbw->affectedRows();
		if ( $ok ) {
			$this->token = $dbw->selectField( 'bot_passwords', 'bp_token', $conds, __METHOD__ );
			$this->isSaved = true;
		}
		return $ok;
	}

	/**
	 * Delete the BotPassword from the database
	 * @return bool Success
	 */
	public function delete() {
		$conds = [
			'bp_user' => $this->centralId,
			'bp_app_id' => $this->appId,
		];
		$dbw = self::getDB( DB_MASTER );
		$dbw->delete( 'bot_passwords', $conds, __METHOD__ );
		$ok = (bool)$dbw->affectedRows();
		if ( $ok ) {
			$this->token = '**unsaved**';
			$this->isSaved = false;
		}
		return $ok;
	}

	/**
	 * Invalidate all passwords for a user, by name
	 * @param string $username User name
	 * @return bool Whether any passwords were invalidated
	 */
	public static function invalidateAllPasswordsForUser( $username ) {
		$centralId = CentralIdLookup::factory()->centralIdFromName(
			$username, CentralIdLookup::AUDIENCE_RAW, CentralIdLookup::READ_LATEST
		);
		return $centralId && self::invalidateAllPasswordsForCentralId( $centralId );
	}

	/**
	 * Invalidate all passwords for a user, by central ID
	 * @param int $centralId
	 * @return bool Whether any passwords were invalidated
	 */
	public static function invalidateAllPasswordsForCentralId( $centralId ) {
		global $wgEnableBotPasswords;

		if ( !$wgEnableBotPasswords ) {
			return false;
		}

		$dbw = self::getDB( DB_MASTER );
		$dbw->update(
			'bot_passwords',
			[ 'bp_password' => PasswordFactory::newInvalidPassword()->toString() ],
			[ 'bp_user' => $centralId ],
			__METHOD__
		);
		return (bool)$dbw->affectedRows();
	}

	/**
	 * Remove all passwords for a user, by name
	 * @param string $username User name
	 * @return bool Whether any passwords were removed
	 */
	public static function removeAllPasswordsForUser( $username ) {
		$centralId = CentralIdLookup::factory()->centralIdFromName(
			$username, CentralIdLookup::AUDIENCE_RAW, CentralIdLookup::READ_LATEST
		);
		return $centralId && self::removeAllPasswordsForCentralId( $centralId );
	}

	/**
	 * Remove all passwords for a user, by central ID
	 * @param int $centralId
	 * @return bool Whether any passwords were removed
	 */
	public static function removeAllPasswordsForCentralId( $centralId ) {
		global $wgEnableBotPasswords;

		if ( !$wgEnableBotPasswords ) {
			return false;
		}

		$dbw = self::getDB( DB_MASTER );
		$dbw->delete(
			'bot_passwords',
			[ 'bp_user' => $centralId ],
			__METHOD__
		);
		return (bool)$dbw->affectedRows();
	}

	/**
	 * Returns a (raw, unhashed) random password string.
	 * @param Config $config
	 * @return string
	 */
	public static function generatePassword( $config ) {
		return PasswordFactory::generateRandomPasswordString(
			max( 32, $config->get( 'MinimalPasswordLength' ) ) );
	}

	/**
	 * There are two ways to login with a bot password: "username@appId", "password" and
	 * "username", "appId@password". Transform it so it is always in the first form.
	 * Returns [bot username, bot password, could be normal password?] where the last one is a flag
	 * meaning this could either be a bot password or a normal password, it cannot be decided for
	 * certain (although in such cases it almost always will be a bot password).
	 * If this cannot be a bot password login just return false.
	 * @param string $username
	 * @param string $password
	 * @return array|false
	 */
	public static function canonicalizeLoginData( $username, $password ) {
		$sep = BotPassword::getSeparator();
		// the strlen check helps minimize the password information obtainable from timing
		if ( strlen( $password ) >= 32 && strpos( $username, $sep ) !== false ) {
			// the separator is not valid in new usernames but might appear in legacy ones
			if ( preg_match( '/^[0-9a-w]{32,}$/', $password ) ) {
				return [ $username, $password, true ];
			}
		} elseif ( strlen( $password ) > 32 && strpos( $password, $sep ) !== false ) {
			$segments = explode( $sep, $password );
			$password = array_pop( $segments );
			$appId = implode( $sep, $segments );
			if ( preg_match( '/^[0-9a-w]{32,}$/', $password ) ) {
				return [ $username . $sep . $appId, $password, true ];
			}
		}
		return false;
	}

	/**
	 * Try to log the user in
	 * @param string $username Combined user name and app ID
	 * @param string $password Supplied password
	 * @param WebRequest $request
	 * @return Status On success, the good status's value is the new Session object
	 */
	public static function login( $username, $password, WebRequest $request ) {
		global $wgEnableBotPasswords;

		if ( !$wgEnableBotPasswords ) {
			return Status::newFatal( 'botpasswords-disabled' );
		}

		$manager = MediaWiki\Session\SessionManager::singleton();
		$provider = $manager->getProvider( BotPasswordSessionProvider::class );
		if ( !$provider ) {
			return Status::newFatal( 'botpasswords-no-provider' );
		}

		// Split name into name+appId
		$sep = self::getSeparator();
		if ( strpos( $username, $sep ) === false ) {
			return Status::newFatal( 'botpasswords-invalid-name', $sep );
		}
		list( $name, $appId ) = explode( $sep, $username, 2 );

		// Find the named user
		$user = User::newFromName( $name );
		if ( !$user || $user->isAnon() ) {
			return Status::newFatal( 'nosuchuser', $name );
		}

		// Get the bot password
		$bp = self::newFromUser( $user, $appId );
		if ( !$bp ) {
			return Status::newFatal( 'botpasswords-not-exist', $name, $appId );
		}

		// Check restrictions
		$status = $bp->getRestrictions()->check( $request );
		if ( !$status->isOK() ) {
			return Status::newFatal( 'botpasswords-restriction-failed' );
		}

		// Check the password
		if ( !$bp->getPassword()->equals( $password ) ) {
			return Status::newFatal( 'wrongpassword' );
		}

		// Ok! Create the session.
		return Status::newGood( $provider->newSessionForRequest( $user, $bp, $request ) );
	}
}


1			<?php
2			/**
3			* Utility class for bot passwords
4			*
5			* This program is free software; you can redistribute it and/or modify
6			* it under the terms of the GNU General Public License as published by
7			* the Free Software Foundation; either version 2 of the License, or
8			* (at your option) any later version.
9			*
10			* This program is distributed in the hope that it will be useful,
11			* but WITHOUT ANY WARRANTY; without even the implied warranty of
12			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13			* GNU General Public License for more details.
14			*
15			* You should have received a copy of the GNU General Public License along
16			* with this program; if not, write to the Free Software Foundation, Inc.,
17			* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
18			* http://www.gnu.org/copyleft/gpl.html
19			*/
20
21			use MediaWiki\Session\BotPasswordSessionProvider;
22
23			/**
24			* Utility class for bot passwords
25			* @since 1.27
26			*/
27			class BotPassword implements IDBAccessObject {
28
29			const APPID_MAXLENGTH = 32;
30
31			/** @var bool */
32			private $isSaved;
33
34			/** @var int */
35			private $centralId;
36
37			/** @var string */
38			private $appId;
39
40			/** @var string */
41			private $token;
42
43			/** @var MWRestrictions */
44			private $restrictions;
45
46			/** @var string[] */
47			private $grants;
48
49			/** @var int */
50			private $flags = self::READ_NORMAL;
51
52			/**
53			* @param object $row bot_passwords database row
54			* @param bool $isSaved Whether the bot password was read from the database
55			* @param int $flags IDBAccessObject read flags
56			*/
57			protected function __construct( $row, $isSaved, $flags = self::READ_NORMAL ) {
58			$this->isSaved = $isSaved;
59			$this->flags = $flags;
60
61			$this->centralId = (int)$row->bp_user;
62			$this->appId = $row->bp_app_id;
63			$this->token = $row->bp_token;
64			$this->restrictions = MWRestrictions::newFromJson( $row->bp_restrictions );
65			$this->grants = FormatJson::decode( $row->bp_grants );
			0 ignored issues – show Documentation Bug introduced 2016-01-16 18:00 UTC by Report Bug Copy Issue Report It seems like `\FormatJson::decode($row->bp_grants)` of type `*` is incompatible with the declared type `array<integer,string>` of property `$grants`. Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property. Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property.. Loading history...
66			}
67
68			/**
69			* Get a database connection for the bot passwords database
70			* @param int $db Index of the connection to get, e.g. DB_MASTER or DB_REPLICA.
71			* @return Database
72			*/
73			public static function getDB( $db ) {
74			global $wgBotPasswordsCluster, $wgBotPasswordsDatabase;
75
76			$lb = $wgBotPasswordsCluster
77			? wfGetLBFactory()->getExternalLB( $wgBotPasswordsCluster )
			0 ignored issues – show Deprecated Code introduced 2016-04-11 17:35 UTC by Report Bug Copy Issue Report The function `wfGetLBFactory()` has been deprecated with message: since 1.27, use MediaWikiServices::getDBLoadBalancerFactory() instead. This function has been deprecated. The supplier of the file has supplied an explanatory message. The explanatory message should give you some clue as to whether and when the function will be removed from the class and what other function to use instead. Loading history...
78			: wfGetLB( $wgBotPasswordsDatabase );
			0 ignored issues – show Deprecated Code introduced 2016-04-11 17:35 UTC by Report Bug Copy Issue Report The function `wfGetLB()` has been deprecated with message: since 1.27, use MediaWikiServices::getDBLoadBalancer() or MediaWikiServices::getDBLoadBalancerFactory() instead. This function has been deprecated. The supplier of the file has supplied an explanatory message. The explanatory message should give you some clue as to whether and when the function will be removed from the class and what other function to use instead. Loading history...
79			return $lb->getConnectionRef( $db, [], $wgBotPasswordsDatabase );
80			}
81
82			/**
83			* Load a BotPassword from the database
84			* @param User $user
85			* @param string $appId
86			* @param int $flags IDBAccessObject read flags
87			* @return BotPassword\|null
88			*/
89			public static function newFromUser( User $user, $appId, $flags = self::READ_NORMAL ) {
90			$centralId = CentralIdLookup::factory()->centralIdFromLocalUser(
91			$user, CentralIdLookup::AUDIENCE_RAW, $flags
92			);
93			return $centralId ? self::newFromCentralId( $centralId, $appId, $flags ) : null;
94			}
95
96			/**
97			* Load a BotPassword from the database
98			* @param int $centralId from CentralIdLookup
99			* @param string $appId
100			* @param int $flags IDBAccessObject read flags
101			* @return BotPassword\|null
102			*/
103			public static function newFromCentralId( $centralId, $appId, $flags = self::READ_NORMAL ) {
104			global $wgEnableBotPasswords;
105
106			if ( !$wgEnableBotPasswords ) {
107			return null;
108			}
109
110			list( $index, $options ) = DBAccessObjectUtils::getDBOptions( $flags );
111			$db = self::getDB( $index );
112			$row = $db->selectRow(
113			'bot_passwords',
114			[ 'bp_user', 'bp_app_id', 'bp_token', 'bp_restrictions', 'bp_grants' ],
115			[ 'bp_user' => $centralId, 'bp_app_id' => $appId ],
116			__METHOD__,
117			$options
118			);
119			return $row ? new self( $row, true, $flags ) : null;
			0 ignored issues – show Bug introduced 2016-02-23 18:13 UTC by Report Bug Copy Issue Report It seems like `$row` defined by `$db->selectRow('bot_pass..., __METHOD__, $options)` on line `112` can also be of type `boolean`; however, `BotPassword::__construct()` does only seem to accept `object`, maybe add an additional type check? If a method or function can return multiple different values and unless you are sure that you only can receive a single value in this context, we recommend to add an additional type check: /** * @return array\|string */ function returnsDifferentValues($x) { if ($x) { return 'foo'; } return array(); } $x = returnsDifferentValues($y); if (is_array($x)) { // $x is an array. } If this a common case that PHP Analyzer should handle natively, please let us know by opening an issue. Loading history...
120			}
121
122			/**
123			* Create an unsaved BotPassword
124			* @param array $data Data to use to create the bot password. Keys are:
125			* - user: (User) User object to create the password for. Overrides username and centralId.
126			* - username: (string) Username to create the password for. Overrides centralId.
127			* - centralId: (int) User central ID to create the password for.
128			* - appId: (string) App ID for the password.
129			* - restrictions: (MWRestrictions, optional) Restrictions.
130			* - grants: (string[], optional) Grants.
131			* @param int $flags IDBAccessObject read flags
132			* @return BotPassword\|null
133			*/
134			public static function newUnsaved( array $data, $flags = self::READ_NORMAL ) {
135			$row = (object)[
136			'bp_user' => 0,
137			'bp_app_id' => isset( $data['appId'] ) ? trim( $data['appId'] ) : '',
138			'bp_token' => 'unsaved',
139			'bp_restrictions' => isset( $data['restrictions'] )
140			? $data['restrictions']
141			: MWRestrictions::newDefault(),
142			'bp_grants' => isset( $data['grants'] ) ? $data['grants'] : [],
143			];
144
145			if (
146			$row->bp_app_id === '' \|\| strlen( $row->bp_app_id ) > self::APPID_MAXLENGTH \|\|
147			!$row->bp_restrictions instanceof MWRestrictions \|\|
148			!is_array( $row->bp_grants )
149			) {
150			return null;
151			}
152
153			$row->bp_restrictions = $row->bp_restrictions->toJson();
154			$row->bp_grants = FormatJson::encode( $row->bp_grants );
155
156			if ( isset( $data['user'] ) ) {
157			if ( !$data['user'] instanceof User ) {
158			return null;
159			}
160			$row->bp_user = CentralIdLookup::factory()->centralIdFromLocalUser(
161			$data['user'], CentralIdLookup::AUDIENCE_RAW, $flags
162			);
163			} elseif ( isset( $data['username'] ) ) {
164			$row->bp_user = CentralIdLookup::factory()->centralIdFromName(
165			$data['username'], CentralIdLookup::AUDIENCE_RAW, $flags
166			);
167			} elseif ( isset( $data['centralId'] ) ) {
168			$row->bp_user = $data['centralId'];
169			}
170			if ( !$row->bp_user ) {
171			return null;
172			}
173
174			return new self( $row, false, $flags );
175			}
176
177			/**
178			* Indicate whether this is known to be saved
179			* @return bool
180			*/
181			public function isSaved() {
182			return $this->isSaved;
183			}
184
185			/**
186			* Get the central user ID
187			* @return int
188			*/
189			public function getUserCentralId() {
190			return $this->centralId;
191			}
192
193			/**
194			* Get the app ID
195			* @return string
196			*/
197			public function getAppId() {
198			return $this->appId;
199			}
200
201			/**
202			* Get the token
203			* @return string
204			*/
205			public function getToken() {
206			return $this->token;
207			}
208
209			/**
210			* Get the restrictions
211			* @return MWRestrictions
212			*/
213			public function getRestrictions() {
214			return $this->restrictions;
215			}
216
217			/**
218			* Get the grants
219			* @return string[]
220			*/
221			public function getGrants() {
222			return $this->grants;
223			}
224
225			/**
226			* Get the separator for combined user name + app ID
227			* @return string
228			*/
229			public static function getSeparator() {
230			global $wgUserrightsInterwikiDelimiter;
231			return $wgUserrightsInterwikiDelimiter;
232			}
233
234			/**
235			* Get the password
236			* @return Password
237			*/
238			protected function getPassword() {
239			list( $index, $options ) = DBAccessObjectUtils::getDBOptions( $this->flags );
240			$db = self::getDB( $index );
241			$password = $db->selectField(
242			'bot_passwords',
243			'bp_password',
244			[ 'bp_user' => $this->centralId, 'bp_app_id' => $this->appId ],
245			__METHOD__,
246			$options
247			);
248			if ( $password === false ) {
249			return PasswordFactory::newInvalidPassword();
250			}
251
252			$passwordFactory = new \PasswordFactory();
253			$passwordFactory->init( \RequestContext::getMain()->getConfig() );
254			try {
255			return $passwordFactory->newFromCiphertext( $password );
256			} catch ( PasswordError $ex ) {
257			return PasswordFactory::newInvalidPassword();
258			}
259			}
260
261			/**
262			* Save the BotPassword to the database
263			* @param string $operation 'update' or 'insert'
264			* @param Password\|null $password Password to set.
265			* @return bool Success
266			*/
267			public function save( $operation, Password $password = null ) {
268			$conds = [
269			'bp_user' => $this->centralId,
270			'bp_app_id' => $this->appId,
271			];
272			$fields = [
273			'bp_token' => MWCryptRand::generateHex( User::TOKEN_LENGTH ),
274			'bp_restrictions' => $this->restrictions->toJson(),
275			'bp_grants' => FormatJson::encode( $this->grants ),
276			];
277
278			if ( $password !== null ) {
279			$fields['bp_password'] = $password->toString();
280			} elseif ( $operation === 'insert' ) {
281			$fields['bp_password'] = PasswordFactory::newInvalidPassword()->toString();
282			}
283
284			$dbw = self::getDB( DB_MASTER );
285			switch ( $operation ) {
286			case 'insert':
287			$dbw->insert( 'bot_passwords', $fields + $conds, __METHOD__, [ 'IGNORE' ] );
288			break;
289
290			case 'update':
291			$dbw->update( 'bot_passwords', $fields, $conds, __METHOD__ );
292			break;
293
294			default:
295			return false;
296			}
297			$ok = (bool)$dbw->affectedRows();
298			if ( $ok ) {
299			$this->token = $dbw->selectField( 'bot_passwords', 'bp_token', $conds, __METHOD__ );
300			$this->isSaved = true;
301			}
302			return $ok;
303			}
304
305			/**
306			* Delete the BotPassword from the database
307			* @return bool Success
308			*/
309			public function delete() {
310			$conds = [
311			'bp_user' => $this->centralId,
312			'bp_app_id' => $this->appId,
313			];
314			$dbw = self::getDB( DB_MASTER );
315			$dbw->delete( 'bot_passwords', $conds, __METHOD__ );
316			$ok = (bool)$dbw->affectedRows();
317			if ( $ok ) {
318			$this->token = 'unsaved';
319			$this->isSaved = false;
320			}
321			return $ok;
322			}
323
324			/**
325			* Invalidate all passwords for a user, by name
326			* @param string $username User name
327			* @return bool Whether any passwords were invalidated
328			*/
329			public static function invalidateAllPasswordsForUser( $username ) {
330			$centralId = CentralIdLookup::factory()->centralIdFromName(
331			$username, CentralIdLookup::AUDIENCE_RAW, CentralIdLookup::READ_LATEST
332			);
333			return $centralId && self::invalidateAllPasswordsForCentralId( $centralId );
334			}
335
336			/**
337			* Invalidate all passwords for a user, by central ID
338			* @param int $centralId
339			* @return bool Whether any passwords were invalidated
340			*/
341			public static function invalidateAllPasswordsForCentralId( $centralId ) {
342			global $wgEnableBotPasswords;
343
344			if ( !$wgEnableBotPasswords ) {
345			return false;
346			}
347
348			$dbw = self::getDB( DB_MASTER );
349			$dbw->update(
350			'bot_passwords',
351			[ 'bp_password' => PasswordFactory::newInvalidPassword()->toString() ],
352			[ 'bp_user' => $centralId ],
353			__METHOD__
354			);
355			return (bool)$dbw->affectedRows();
356			}
357
358			/**
359			* Remove all passwords for a user, by name
360			* @param string $username User name
361			* @return bool Whether any passwords were removed
362			*/
363			public static function removeAllPasswordsForUser( $username ) {
364			$centralId = CentralIdLookup::factory()->centralIdFromName(
365			$username, CentralIdLookup::AUDIENCE_RAW, CentralIdLookup::READ_LATEST
366			);
367			return $centralId && self::removeAllPasswordsForCentralId( $centralId );
368			}
369
370			/**
371			* Remove all passwords for a user, by central ID
372			* @param int $centralId
373			* @return bool Whether any passwords were removed
374			*/
375			public static function removeAllPasswordsForCentralId( $centralId ) {
376			global $wgEnableBotPasswords;
377
378			if ( !$wgEnableBotPasswords ) {
379			return false;
380			}
381
382			$dbw = self::getDB( DB_MASTER );
383			$dbw->delete(
384			'bot_passwords',
385			[ 'bp_user' => $centralId ],
386			__METHOD__
387			);
388			return (bool)$dbw->affectedRows();
389			}
390
391			/**
392			* Returns a (raw, unhashed) random password string.
393			* @param Config $config
394			* @return string
395			*/
396			public static function generatePassword( $config ) {
397			return PasswordFactory::generateRandomPasswordString(
398			max( 32, $config->get( 'MinimalPasswordLength' ) ) );
399			}
400
401			/**
402			* There are two ways to login with a bot password: "username@appId", "password" and
403			* "username", "appId@password". Transform it so it is always in the first form.
404			* Returns [bot username, bot password, could be normal password?] where the last one is a flag
405			* meaning this could either be a bot password or a normal password, it cannot be decided for
406			* certain (although in such cases it almost always will be a bot password).
407			* If this cannot be a bot password login just return false.
408			* @param string $username
409			* @param string $password
410			* @return array\|false
411			*/
412			public static function canonicalizeLoginData( $username, $password ) {
413			$sep = BotPassword::getSeparator();
414			// the strlen check helps minimize the password information obtainable from timing
415			if ( strlen( $password ) >= 32 && strpos( $username, $sep ) !== false ) {
416			// the separator is not valid in new usernames but might appear in legacy ones
417			if ( preg_match( '/^[0-9a-w]{32,}$/', $password ) ) {
418			return [ $username, $password, true ];
419			}
420			} elseif ( strlen( $password ) > 32 && strpos( $password, $sep ) !== false ) {
421			$segments = explode( $sep, $password );
422			$password = array_pop( $segments );
423			$appId = implode( $sep, $segments );
424			if ( preg_match( '/^[0-9a-w]{32,}$/', $password ) ) {
425			return [ $username . $sep . $appId, $password, true ];
426			}
427			}
428			return false;
429			}
430
431			/**
432			* Try to log the user in
433			* @param string $username Combined user name and app ID
434			* @param string $password Supplied password
435			* @param WebRequest $request
436			* @return Status On success, the good status's value is the new Session object
437			*/
438			public static function login( $username, $password, WebRequest $request ) {
439			global $wgEnableBotPasswords;
440
441			if ( !$wgEnableBotPasswords ) {
442			return Status::newFatal( 'botpasswords-disabled' );
443			}
444
445			$manager = MediaWiki\Session\SessionManager::singleton();
446			$provider = $manager->getProvider( BotPasswordSessionProvider::class );
447			if ( !$provider ) {
448			return Status::newFatal( 'botpasswords-no-provider' );
449			}
450
451			// Split name into name+appId
452			$sep = self::getSeparator();
453			if ( strpos( $username, $sep ) === false ) {
454			return Status::newFatal( 'botpasswords-invalid-name', $sep );
455			}
456			list( $name, $appId ) = explode( $sep, $username, 2 );
457
458			// Find the named user
459			$user = User::newFromName( $name );
460			if ( !$user \|\| $user->isAnon() ) {
461			return Status::newFatal( 'nosuchuser', $name );
462			}
463
464			// Get the bot password
465			$bp = self::newFromUser( $user, $appId );
466			if ( !$bp ) {
467			return Status::newFatal( 'botpasswords-not-exist', $name, $appId );
468			}
469
470			// Check restrictions
471			$status = $bp->getRestrictions()->check( $request );
472			if ( !$status->isOK() ) {
473			return Status::newFatal( 'botpasswords-restriction-failed' );
474			}
475
476			// Check the password
477			if ( !$bp->getPassword()->equals( $password ) ) {
478			return Status::newFatal( 'wrongpassword' );
479			}
480
481			// Ok! Create the session.
482			return Status::newGood( $provider->newSessionForRequest( $user, $bp, $request ) );
483			}
484			}
485

wikimedia / mediawiki

BotPassword::getToken() A last analyzed 2016-11-13 17:42 UTC

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BotPassword::getToken() A
last analyzed 2016-11-13 17:42 UTC